Winding mechanism for printing-presses



0. VIIDUTRO AND A. s. BURROUGHS.

WINDING MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED APR. 8, 1919.

Quay/e 1 Dufro flrI/zur 6. Burroughs QUNITED S A PATENT OFFICE.

onvILLn meme porno AND ARTHUR s. nunaouens, orsroKANn, WASHINGTON.

wnvnnve MECHANISM; non rnmrrne-rn'nssns.

To all whom it mag concern. g 1

Beit known; that we, ORv1LLniV. DUTRo and ARTHUR S. Bunno'ueiis, citizens of the United States, residing at Spokane, in the county of Spokane and State of Washing 1 ton, have invented-certain new and useful Improvements in :Winding Mechanisms for Printing-Presses, of which the following is a specification. l

The subject matter of the present invention relates to an improved winding mechanism, designed especially-for use in connection with a web feed printing press in which'the web or paper, is fed from a roll and the web after beingprinted, is cut into sheets. The cutting of these sheets involves both a transverse cut and -a longitudinal cut, as for instancewhere a printed sheet is required that is of less width than the original web, the web is slitted or cut longitudinally and then this partly cut sheet is cut transversely 'to form the rectangular sheet, leaving the remainder of the web as a continuous strip. The device or attachment of the present invention is designed to rewind this remaining web or strip of paper as it passes, with an intermittent motion through the printing press.

The invention consists in certain novel combinations and arrangements of parts wherein a floating winding roll is rotated to wind the web, and particularly in the combination and arrangement of compensating featuresto allow for the increasing size of the roll, an equalizingfeature to insure accurate winding of the'paper on its roll, and facile release mechanism, together with other details as will be hereinafter pointed out.

Figure 1 is a side elevation of so much of a web feed printing press as is necessary to illustrate the application thereto of the device.

Fig. 2 is an end view of the machine as seen from the left in Fig. 1.

Fig. 3 is a view, enlarged, of one of the winding cores.

Fig. 4 is a perspective view of one of the wedge sections of the core, and Fig. 5 is a face view of one of these wedges or core sections, showing in dotted lines the relationship of the other or duplex section.

In the preferred embodiment of the invention as illustrated in the drawings, the Web which is designated at W, in Fig. 1, is

shown in its travel by dotted lines at the Specification of Letters Patent. Patented Sept ,28,'1920,

. Ap IicationfiIed April 8, 1919. Serial No. 288,546. Y

rear end of thep rinting press P, and traveling over the rolls 1, 2, to a pair of roll supporting rolls Sand 4, that have their shafts 5*and 6 journaled in the side plates of the attachment P. These two rolls, the one designated as 3 an idle roll and the roll 4 a positively driven roll, are spaced from each other and parallel witheach other so that they may support between them and above them the winding. roll 7 upon which the web is 're-wound from the printing press. The winding roll rests or floats on the top of the supportingv rolls and the driven roll 4, by frictional contact with the face of the re winding roll 7, draws the strip of paper or web over the rolls 1 and 1 and by the revolving movement'imparted to the roll the strip is wound thereon, the roll 4 being positively driven in unison with the draw roll of the feeder and controlled by the same adjustment. i

In Figs. 3, 4, 5, the details of construction of the core for the winding roll are illustrated.- The core is made up of two wedge shaped sections 8 and 9 each having an end collar 10 recessed; at llto receive the end of the eomplementarysection so that these endsmay be slipped into the recesses to hold the core in normal operative position as in Fig. 3. After the paper roll has been wound upon the core, the core may be withdrawn from the roll with facility by-disconnecting onewedge section from the other.

To compensate for the increasing diameter of he winding roll as the winding process progresses, the winding roll is supported by the trunnions 12 on the ends of the core, in the hooks 13 of the compensating side bars 14 that are supported to move vertically in the bearings 15 on the outside of the printing press frame. These compensating bars extend to near the lower portion of the press and are connected by a lower transverse 'brace 16 upon which the several wei hts 1'? may be deposited as desired. Preferably the brace 16 is formed as a shelf with a pair of spaced vertical pins projecting and 4 so thatthe driven roll 4 may positively turn the winding roll. The weights may be adjusted't'o' provide the proper friction between the winding roll and the supporting rolls to wind the strip on the core, but of course they permit the elevating of the compensating device, as a whole, as 'thediameter of the winding roll increases, theside bars, 14:. being lifted in their'bearings 15, 15, and the compensating device with its weights is thus lifted as the rollof paper increases in diameter, but atall times the paper roll is held down in. frictional contact with the supporting rolls-o so that the driven Irol'ls maydraw the webor paper strip and cause it to be wound on its core. 7

= each end a rack wheel 20, outside the frame,

and engaging the rack'teeth 21 on ,the'two side bars or-compensating bars 14. Thus through the two rack wheels and thetwo sets of rack teeth the two compensating bars 7 are caused to move in unison and consequently the core of the rewinding roll is held in its adjusted horizontal position to provide for an even and uniform winding of the paper on the roll.

After the strip of web has beenwound upon the core, and it is desired to remove the wound roll, the compensating device is lifted bodily by means of the release lever 22,.pivotally supported through the link 23, on the bracket'24, and the short arm 25 of this lever is pivotally connected to theshelf or brace 16 of the compensating device. Thusthe hooks at the upper ends of the'side arms are disengaged from their trunnions 12 and the winding roll may be removed.

Other parts of the printing press," such as the vertically reciprocating knife-26, the

gage plate 27 of the board 28 upon which the sheet S falls when cutyand the adjusting device 29, for the board, are morejparticu-larly described fin co-pending applications for patent, and need not be herein de tailed as to their construction.

Claims 1.,The combination with a compensating frame comprising side bars vertically movable, of apair of supporting rolls one of which is positively driven, a winding roll having tru'nnionsand resting upon the supporting rolls, and said side bars detachably suspended from said trunnions, a weighted device connecting the side bars at their lower ends, and means for lifting said device to frpie the winding roll from the supporting re s.

- 2. The combination with a pair of supporting rolls one of which is positively driven, of a vertically-movable compensating frame having upper end hooks, a winding roll 3' ournaled in the hooks and frictionally engaging the driven roll, a'transverse lower shelf forming part of the frame, weights on said shelf, and a release device whereby the completed winding roll may be disengaged from its hooks 3. The combination with a pair of sup- 5 porting rolls one" of which is positively driven, oftwo side bars having rack teeth forming asu'spended compensating frame, a

transverse shelf connecting the lower ends of said side bars and a weight on the shelf, a pivoted lift lever connected to the shelf, an

equalizer-shaft and rack wheels thereon to engage the rackteeth, hooks at the upper ends ofsaid bars, a core having trunnions journaled in said hooks, whereby a web may be wound on the corev by frictional'contact' wi'ththe driven roll.

-In testimony-whereof we affix our signatures ORVILLE VINCENT 'DUTRO.

ARTHUR S. BURROUGHS. 

